text: class Solution:
      # @param n, an integer
      # @return an integer
      def reverseBits(self, n):
          s = 0
          c = 32
          while c > 0:
              s = (s << 1) + (n & 1)
              n = n >> 1
              c = c - 1
          return s
  
  s = Solution()
  print(s.reverseBits(43261596))
  